Home / 2,783.92-4,173.36-1,140.16

Finding the Fourth Proportional to 2,783.92, 4,173.36 and 1,140.16

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Solution

The fourth proportional to 2,783.92, 4,173.36 and 1,140.16 is: 1,709.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.92 : 4,173.36 = 1,140.16 : x
  2. Step 2: Convert to fraction form
    2,783.92/4,173.36 = 1,140.16/x
  3. Step 3: Cross multiply
    2,783.92x = 4,173.36 × 1,140.16
  4. Step 4: Simplify right side
    2,783.92x = 4,758,298.14
  5. Step 5: Solve for x
    x = 4,758,298.14/2,783.92
  6. Step 6: Final answer
    x = 1,709.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.